Check the listing for details. Whirlpool 186016-033 Water Heater Burner Orifice. Condition: New. Listed at 14.00 USD. Whirlpool 186016-033 Water Heater Burner Orifice This burner orifice (part number 186016-033) is for water heaters. Burner orifice 186016-033 regulates the flow of gas coming from the gas burner valve. The gas supply line connections must be checked for leaks after installing this part.Compatible Brands: WHIRLPOOLThis burner orifice (part number 186016-033) is for water heatersThis is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including; 186016-033The gas supply line connections must be checked for leaks after installing this partThis part is compatible with models including; NU40T62-403, NU50T62-403, NU50T61-403, NU40T61-403Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Whirlpool